| 引用本文: | 翁毅选,邓长虹,黄文涛,舒征宇.基于最优动态闭环控制的水火电互联大电网自动发电控制策略[J].电力自动化设备,2013,33(3): |
| WENG Yixuan,DENG Changhong,HUANG Wentao,SHU Zhengyu.AGC based on optimal dynamic closed-loop control for interconnected power grid of hydro and thermal power plants[J].Electric Power Automation Equipment,2013,33(3): |
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| 摘要: |
| 研究了含有水电和再热式火电机组的大电网自动发电控制问题。建立了两区域互联的大电网自动发电控制状态空间数学模型。引入新的动态性能指标，基于最优化控制理论，提出了最优动态闭环自动发电控制策略。与全状态反馈控制相比较，该方法既降低了互联系统内部的耦合性，又能及时了解系统内部的关键状态，具有更好的实用性和可操作性；与传统的PI控制策略相比，提出的方法从全动态的角度出发，对复杂的互联大电网具有更好的动态适应性。仿真分析验证了理论分析的正确性。 |
| 关键词: 互联电力系统 状态空间模型 最优动态闭环控制 自动发电控制 水电 火电 |
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| AGC based on optimal dynamic closed-loop control for interconnected power grid of hydro and thermal power plants |
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WENG Yixuan, DENG Changhong, HUANG Wentao, SHU Zhengyu
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College of Electrical Engineering，Wuhan University，Wuhan 430072，China
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| Abstract: |
| The AGC（Automatic Generation Control） is researched for the interconnected power grid with hydro and thermal power plants. The AGC state space mathematical model of a two-area power grid is established. A dynamic performance index is introduced and a strategy of optimal dynamic closed-loop AGC based on optimal control theory is proposed. Compared with the full state feedback control，it reduces the internal coupling of the interconnected system and masters timely the critical states within system，resulting in better practicability and maneuverability. Compared with the traditional PI control，it carries out a comprehensively dynamic control，resulting in better dynamic adaptability to complex interconnected power grid. Simulation verifies the correctness of theoretical analysis. |
| Key words: interconnected power system state space model optimal dynamic closed-loop control automatic generation control hydroelectric power thermoelectric power |
